Libertarian socialism (sometimes called social anarchism, and sometimes left libertarianism) is a group of political philosophies that promote a non-hierarchical, non-bureaucratic, stateless society without private property in the means of production. Libertarian socialism is opposed to all coercive forms of social organization, and promotes free association in place of government and opposes what it sees as the coercive social relations of capitalism, such as wage labor.

Adherents of libertarian socialism assert that a society based on freedom and equality can be achieved through abolishing authoritarian institutions that control certain means of production and subordinate the majority to an owning class or political and economic elite.